CN210422891U - Anti-icing wind power blade - Google Patents
Anti-icing wind power blade Download PDFInfo
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- CN210422891U CN210422891U CN201921467078.9U CN201921467078U CN210422891U CN 210422891 U CN210422891 U CN 210422891U CN 201921467078 U CN201921467078 U CN 201921467078U CN 210422891 U CN210422891 U CN 210422891U
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E10/00—Energy generation through renewable energy sources
- Y02E10/70—Wind energy
- Y02E10/72—Wind turbines with rotation axis in wind direction
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Abstract
The utility model discloses an anti-icing wind-powered electricity generation blade is fixed with the anti-icing box on this wind-powered electricity generation blade internal surface, is connected with two pipelines on the anti-icing box lateral wall, all is equipped with the valve on two pipelines, and two pipelines are used for pouring into or the resistant cryogenic liquids of discharge high density to the box is inside. A plurality of anti-icing box bodies are fixed on the inner surface of the wind power blade, pipelines on the anti-icing box bodies all extend to the root of the wind power blade, and valves on the pipelines are all arranged at the root of the wind power blade. Every is equipped with the division board in the anti-icing box body, and the direction that sets up of division board is perpendicular with wind-powered electricity generation blade length direction, and has seted up a plurality of damping holes on the division board. The inner surface of the anti-icing box body and the outer surface of the partition plate are both arranged by rough surfaces. The utility model discloses utilize liquid kinetic energy heat energy conversion principle, can be under the wind turbine generator system condition of not shutting down, continuously heat for the blade surface along with the impeller rotation, the emergence of prevention blade surface icing phenomenon, simple and convenient, practical easy operation.
Description
Technical Field
The utility model relates to a wind turbine generator system technical field especially relates to an anti-icing wind power blade.
Background
The wind power blade is used as an important component of the wind generating set, and plays a role in capturing wind power due to the unique aerodynamic shape. When the wind generating set operates at zero centigrade and low temperature below zero, the wind generating set can be frozen if meeting humid air, rain, salt fog, ice and snow and freezing rain. After the wind power blade is coated with ice, the aerodynamic appearance of the blade is changed, the generated energy is influenced, and the blade is also damaged due to the fact that the blade is coated with ice and overloaded in severe situations.
In the wind power industry at present, the mainstream scheme for melting ice is as follows: 1) and (3) adding a carbon fiber material on the blade skin by using a carbon fiber electric heating ice melting technology, and connecting a power supply and a controller. When the surface of the blade is coated with ice, the carbon fiber is electrified to generate heat to achieve the purpose of melting ice. The method has the disadvantages of complicated steps, difficult operation and increased cost when preparing the blades. 2) The hot air blower is additionally arranged at the root part of the blade, and hot air is delivered into the inner cavity of the blade through the hot air blower so as to achieve the purpose of melting ice. However, for large megawatt wind power blades, the ice melting method cannot achieve the understood technical effect. In addition, the existing method needs to be operated in the shutdown state of the wind turbine generator, and the generating efficiency of the wind turbine generator is influenced.
Therefore, the conventional wind turbine blade and the method for preventing the wind turbine blade from icing still have inconvenience and defects, and further improvement is needed. How to create a new trend anti-icing wind-powered electricity generation blade, make its simple and convenient, and can reach the anti-icing effect of wind-powered electricity generation blade under the state of not shutting down, become the target that the industry greatly needs the improvement at present.
SUMMERY OF THE UTILITY MODEL
The to-be-solved technical problem of the utility model is to provide an anti-icing wind power blade makes its simple and convenient, and can reach the anti-icing effect of wind power blade under the non-stop state to overcome the not enough of current wind power blade anti-icing method.
In order to solve the technical problem, the utility model provides an anti-icing wind power blade, be fixed with the anti-icing box on the wind power blade internal surface, be connected with two mutually independent pipelines on the lateral wall of anti-icing box, and all be equipped with the valve on two pipelines, two pipelines be used for the realization to anti-icing box internal portion pours into or the resistant cryogenic liquids of discharge high density into.
The anti-icing device is characterized in that the anti-icing box body is fixedly adhered to the inner surface of the front edge of the wind power blade, and the shape of the outer side of the anti-icing box body is matched with the shape of the inner surface of the front edge of the wind power blade.
The improved wind power blade is characterized in that a plurality of independent anti-icing boxes are fixed on the inner surface of the wind power blade and are arranged in a plurality of ways, and the anti-icing boxes are arranged along the length direction of the wind power blade and are arranged in a plurality of ways, pipelines on the anti-icing boxes extend to the roots of the wind power blade, and valves on the pipelines are arranged at the roots of the wind power blade.
The improved wind power anti-icing box is characterized in that a partition plate is arranged in each anti-icing box body, the direction of the partition plate is perpendicular to the length direction of the wind power blades, and a plurality of damping holes are formed in the partition plate.
In a further improvement, the inner surface of the anti-icing box body and the outer surface of the partition plate are both arranged in a rough surface mode.
Further improved, the aperture of the damping hole is 2-3 cm.
In a further improvement, a plurality of parallel partition plates with equal intervals are arranged inside the anti-icing box body.
The improved ice-proof box is characterized in that the inner sides of two opposite side walls of the ice-proof box body are respectively provided with a corresponding clamping groove, and two ends of the partition plate are respectively clamped in the clamping grooves.
Further improved, the anti-icing box body is made of high-strength light materials.
Further improved, the high-density low-temperature-resistant liquid adopts high-density low-temperature-resistant lubricating oil.
After adopting such design, the utility model discloses following advantage has at least:
1. the utility model discloses a set up the anti-icing box at wind-powered electricity generation blade internal surface, and connecting line on the anti-icing box, set up the valve on the pipeline, can realize when needs to the inside purpose of pouring the resistant cryogenic liquid of high density into this box, and utilize this structure, make the resistant cryogenic liquid of high density when the impeller is rotatory, rock, impact, friction inside this box, make the resistant cryogenic liquid kinetic energy of this high density convert heat energy into, heat energy retransfer to the blade surface, play the purpose that prevents the blade surface from freezing.
2. The utility model discloses a set for the division board inside the anti-icing box, set up the damping hole on the division board, make this high density resistant cryogenic liquids when the impeller is rotatory, through the pressure energy of rocking the production, this pressure energy can make this liquid spout from the high-speed in the damping hole again, convert the liquid kinetic energy into, then high-speed spun liquid again through with the impact of division board, convert heat energy into, make its temperature rise, this heat energy gives off the surface of wind-powered electricity generation blade, further play the effect that prevents the wind-powered electricity generation blade and freeze.
3. Still through all setting to rough surface with the internal surface of anti-icing box and division board surface, can further increase the heat energy that high density low temperature resistant liquid rocked, assaulted and the friction produced, play better anti-icing effect.
4. Through set up a plurality of independent anti-icing box bodies in wind-powered electricity generation blade inside to all set up the control flap on each box at the blade root, convenient operation does benefit to the anti-icing control to the different positions of blade, and makes it be fit for being used for big megawatt level wind-powered electricity generation blade, and application scope is wide.
5. The utility model discloses utilize liquid kinetic energy heat energy conversion principle, can be under the condition that wind generating set does not shut down, continuously heat for the blade surface along with the impeller rotation, the phenomenon that the prevention blade surface freezes takes place, has solved wind generating set when running under the low temperature condition below zero degree centigrade and zero degree, if meet humid air, rainwater, salt fog, ice and snow and freeze rain weather can take place the problem that the blade surface covered ice.
Drawings
The foregoing is only an overview of the technical solutions of the present invention, and in order to make the technical means of the present invention more clear, the present invention will be further described in detail with reference to the accompanying drawings and the detailed description.
Fig. 1 is a longitudinal section schematic view of the anti-icing wind power blade of the utility model.
Fig. 2 is a cross-sectional schematic view of the anti-icing wind power blade of the present invention.
Fig. 3 is the structural schematic diagram of the anti-icing box body in the anti-icing wind power blade of the utility model.
Fig. 4 is a partially enlarged view of the area a in fig. 3.
Fig. 5 is the structural schematic diagram of the partition board in the anti-icing wind power blade of the utility model.
Detailed Description
Referring to fig. 1 to 4, the anti-icing wind power blade of the embodiment has the following specific structure. Be fixed with anti-icing box 1 on this wind-powered electricity generation blade 10 internal surface, be connected with two mutually independent pipelines 2, 3 on the lateral wall of this anti-icing box 1, and all be equipped with valve 4, 5 on two pipelines 2, 3, these two pipelines 2, 3 are used for realizing pouring into or the resistant cryogenic liquids of discharge high density to this anti-icing box 1 inside.
Specifically, the ice box body 1 is fixedly bonded to the inner surface of the front edge of the wind power blade 10, and the shape of the outer side of the ice box body 1 is matched with the shape of the inner surface of the front edge of the wind power blade 10. Namely, the anti-icing box body 1 is a box body customized according to the front edge profile of the inner cavity of the blade, and the customized box body is bonded in a proper area of the front edge of the inner cavity of the blade by using bonding glue before the blade is assembled. The ice bin body 1 is made of a lightweight high strength material, such as plastic.
For a large megawatt wind turbine blade, a plurality of independent anti-icing box bodies 1 are required to be fixed on the inner surface of the wind turbine blade 10, the anti-icing box bodies 1 are arranged along the length direction of the wind turbine blade 10, pipelines on the anti-icing box bodies 1 extend to the root of the wind turbine blade 10, and valves on the pipelines are arranged at the root of the wind turbine blade 10 and marked. Thus, the operation of the valve by operators is facilitated, and the control of the anti-icing box body at different parts of the blade is facilitated.
Further improve, every this anti-icing box 1's inside all is equipped with one or more division board 6, and a plurality of division boards 6 parallel equidistant setting is in the box. The specific fixing mode is as follows: the inner sides of two opposite side walls of the ice-proof box body 1 are respectively provided with a corresponding clamping groove 8, and two ends of the partition plate 7 are respectively clamped into the clamping grooves 8, so that the partition plate 6 is fixed in the ice-proof box body 1.
The setting direction of the partition plate 6 is perpendicular to the length direction of the wind power blade 10, and a plurality of damping holes 7 are formed in the partition plate 6. The diameter of the damping hole 7 is 2-3cm, as shown in figure 5. The partition plate 6 divides the inner cavity of the anti-icing box into at least two areas, and when the blades rotate, the high-density low-temperature resistant liquid in the partition plate 6 is sprayed to the other area along the damping holes 7 on the partition plate.
In order to enhance the friction kinetic energy of the high-density low-temperature-resistant liquid in the anti-icing box body 1, the inner surface of the anti-icing box body 1 and the outer surface of the partition plate 6 are both provided with rough surfaces, so that the temperature rise effect is further improved.
In the embodiment, the high-density low-temperature-resistant liquid adopts high-density low-temperature-resistant lubricating oil, and can play a role in preventing freezing and transferring heat quickly.
The utility model discloses anti-icing method of anti-icing wind power blade includes following step:
(1) in winter, namely before the wind power blades need to be prevented from being frozen, the wind power blades 10 are rotated to be vertically arranged downwards, meanwhile, the valves 4 and 5 on the two pipelines 2 and 3 of the anti-icing box body 1 are opened, high-density low-temperature-resistant liquid is filled into each anti-icing box body 1 through one pipeline under the action of gravity, the other pipeline is used for ventilation, and the valves 4 and 5 are closed when the high-density low-temperature-resistant lubricating oil is added to the volumes 1/2 to 2/3 of the anti-icing box body 1.
(2) Along with the operation of the wind power blade 10, the high-density low-temperature-resistant lubricating oil shakes, impacts and rubs inside the anti-icing box body 1 under the action of the rotating centrifugal force and the self gravity of the wind power blade 10, especially when the lubricating oil shakes inside the box body, the acting force of the lubricating oil is converted into the pressure energy of liquid, and then the pressurized lubricating oil is ejected out of the narrow damping hole 7 at a high speed and enters the next area; the pressure energy of lubricating oil is liquid kinetic energy at the conversion in the twinkling of an eye, and high-speed spun lubricating oil strikes with the division board, reachs the low-speed state in the twinkling of an eye again, and at this in-process, the kinetic energy of this high density resistant low temperature lubricating oil converts heat energy into, makes its temperature rise, and this heat energy gives off the surface of wind-powered electricity generation blade 10, plays the effect that prevents this wind-powered electricity generation blade 10 and freeze.
(3) After winter, namely when the wind power blade does not need to be prevented from being frozen, the wind power blade 10 is rotated to be vertically arranged upwards, and meanwhile, the valves 4 and 5 on the two pipelines 2 and 3 of the anti-icing box body 1 are opened, so that high-density low-temperature-resistant liquid in the anti-icing box body 1 is discharged, the weight of the blade is reduced, and the power generation power is improved.
The utility model discloses the wind-powered electricity generation blade that prevents to freeze utilizes the principle of liquid kinetic energy heat energy conversion, installs the box additional at blade inner chamber front edge, sets up division board and damping hole in the box, and the tank wall is established to the mat surface, then pours into the damping lubricating oil of 1/2 to 1/3 volume into. When the impeller of the wind generating set rotates, the damping lubricating oil is subjected to the action of centrifugal force and self gravity when the blades rotate, acting force is converted into pressure energy of oil when the damping lubricating oil shakes in the anti-icing box body, and then the compressed oil is sprayed out from the narrow damping holes at a high speed, namely the pressure energy of liquid is converted into liquid kinetic energy instantly. Then the lubricating oil sprayed out at high speed is impacted with the partition plate to reach a low-speed state instantly. In the process, the kinetic energy of the lubricating oil is converted into heat energy through impact and friction between liquids and between the liquids and solids, so that the temperature of the lubricating oil is increased, and the heat energy is dissipated to the surface of the blade, so that the purpose of continuously heating the front edge of the blade is achieved, and the effect of preventing the blade from icing is achieved.
The utility model provides a wind generating set when the operation under the low temperature condition below zero degree centigrade and zero degree, if meet humid air, rainwater, salt fog, ice and snow and sleet weather can take place the problem of blade surface icing to can be under the condition that wind generating set does not shut down, continuously heat for the blade surface along with the impeller rotation, prevent that the phenomenon that the blade surface freezes takes place, simple and convenient, easy operation, with low costs.
The above description is only for the preferred embodiment of the present invention, and not intended to limit the present invention in any way, and those skilled in the art can make various modifications, equivalent changes and modifications using the above-described technical content, all of which fall within the scope of the present invention.
Claims (10)
1. The utility model provides an anti-icing wind-powered electricity generation blade, its characterized in that, be fixed with the anti-icing box body on the wind-powered electricity generation blade internal surface, be connected with two mutually independent pipelines on the lateral wall of anti-icing box body, and all be equipped with the valve on two pipelines, two pipelines be used for the realization to the anti-icing box internal portion pours into or the resistant cryogenic liquids of discharge high density into.
2. The anti-icing wind power blade according to claim 1, wherein a plurality of independent anti-icing boxes are fixed on the inner surface of the wind power blade and arranged along the length direction of the wind power blade, pipelines on the anti-icing boxes extend to the root of the wind power blade, and valves on the pipelines are arranged at the root of the wind power blade.
3. The anti-icing wind turbine blade according to claim 1, wherein the anti-icing box body is fixedly adhered to the inner surface of the front edge of the wind turbine blade, and the shape of the outer side of the anti-icing box body is matched with the shape of the inner surface of the front edge of the wind turbine blade.
4. The anti-icing wind power blade according to any one of claims 1 to 3, wherein a partition plate is arranged inside each anti-icing box body, the arrangement direction of the partition plate is perpendicular to the length direction of the wind power blade, and a plurality of damping holes are formed in the partition plate.
5. The anti-icing wind power blade according to claim 4, wherein the inner surface of the anti-icing box body and the outer surface of the partition plate are both provided with rough surfaces.
6. The anti-icing wind turbine blade according to claim 4, wherein the damping hole has an aperture of 2-3 cm.
7. The anti-icing wind power blade according to claim 4, wherein a plurality of parallel partition plates with equal spacing are arranged inside the anti-icing box body.
8. The anti-icing wind power blade according to claim 4, wherein corresponding clamping grooves are respectively formed in the inner sides of two opposite side walls of the anti-icing box body, and two ends of the partition plate are respectively clamped in the clamping grooves.
9. The anti-icing wind power blade according to claim 1, wherein the anti-icing box body is made of a high-strength light material.
10. The anti-icing wind turbine blade according to claim 1, wherein the high-density low-temperature-resistant liquid is high-density low-temperature-resistant lubricating oil.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921467078.9U CN210422891U (en) | 2019-09-05 | 2019-09-05 | Anti-icing wind power blade |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921467078.9U CN210422891U (en) | 2019-09-05 | 2019-09-05 | Anti-icing wind power blade |
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| Publication Number | Publication Date |
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| CN210422891U true CN210422891U (en) | 2020-04-28 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201921467078.9U Active CN210422891U (en) | 2019-09-05 | 2019-09-05 | Anti-icing wind power blade |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110486222A (en) * | 2019-09-05 | 2019-11-22 | 国电联合动力技术有限公司 | A kind of anti-icing wind electricity blade and wind electricity blade prevent the method to freeze |
| CN113915079A (en) * | 2020-07-07 | 2022-01-11 | 福建金风科技有限公司 | Blade auxiliary device, wind generating set blade and wind generating set |
-
2019
- 2019-09-05 CN CN201921467078.9U patent/CN210422891U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110486222A (en) * | 2019-09-05 | 2019-11-22 | 国电联合动力技术有限公司 | A kind of anti-icing wind electricity blade and wind electricity blade prevent the method to freeze |
| CN113915079A (en) * | 2020-07-07 | 2022-01-11 | 福建金风科技有限公司 | Blade auxiliary device, wind generating set blade and wind generating set |
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